The iCOM IC-7800 transceiver is an artistic fusion of over 40 years analog RF circuit
development expertise and cutting-edge digital technology. The result is TWO
identical receivers with 110dB dynamic range, +40dBm 3rd order intercept
point, and unmatched Digital Signal Processor technology in the HF bands,
something that has never been achieved in Ham radio! Simply put, iCOM
has developed the ultimate Amateur HF transceiver. No one else comes
close!

Two receivers means you can use two antennas to implement diversity
reception; when the signal fades in one antenna, it often peaks in the
other. Even if you've got one of those technically advanced SteppIR
antennas, it alone won't eliminate signal fading (QSB).